baber/WOPTO huggingface dataset:
Patent GB-306005-A (GB)
Title: Means for converting reciprocating or oscillating into rotary motion or vice versa
IPC: F16H21/10
Filed: 1927-09-12
Abstract: 306,005. Armstrong, Whitworth, & Co., Ltd., Sir W. G., Adamson, R. B., Mole, H. W., and Archibald, J. Sept. 12, 1927. Loading-appliances.-A device for converting reciprocating or oscillating motion into rotary motion or vice versa, particularly applicable to ammunition hoist mechanism as described in Specifications 215,896 and 306,006, comprises a pair of rockable arms 4, 5 secured to intergeared spindles 2, 3, and adapted to bear alternately on a crank pin 10 carried by a rotary member such as a disc 9. The spindle 2 may be rocked by an arm 20, intermeshing gears 6, 7 rocking the spindle 3 oppositely. Each arm 4, 5 engages the crank pin through about 180‹, there being a small lag between the forward and return pick-up motions, during which the disc is held by the engagement with recesses 16 therein of a roller 17 on a spring-pressed lever 18. To prevent backlash, the outer ends of the arms are formed with return portions 14. In a modification, Fig. 6A, the crank pin is formed with eccentric portions 21, 22 of different diameters adapted to cooperate successively with separate cam surfaces 23 - - - - 26 on the lever arms 4, 5. In this form, the arm 4 is bifurcated to allow passage of the arm 5 therebetween, and each of the four cam tracks is in operation for about 90‹.
Patent GB-507457-A (GB)
Title: An improved method of operating four-stroke internal combustion engines using dust fuel
IPC: F02B45/02
Filed: 1938-08-15
Abstract: 507,457. Powdered - fuel engines. HANNOVERSCHE-MASCHINENBAU-AKT.- GES VORM. G. EGESTORFF (HANOMAG). Aug. 15, 1938, No. 23992. Convention date, Oct.' 22, 1937. Drawings to Specification. [Class 7 (ii)] A precombustion chamber of a four-strokecycle powdered-fuel engine is open to the cylinder through a narrow port and is charged by holding the valves closed at the beginning of the suction stroke and, for a short time, opening a fuel valve in the precombustion chamber when the pressure in the cylinder is low so that fuel is induced. The air-inlet valve is opened during or after the charging of the precombustion chamber so as to produce a flow of air into that chamber and thus prevent premature escape of the fuel into the cylinder. The airinlet valve may remain open until after the commencement of the compression stroke.
Patent GB-738921-A (GB)
Title: Improved methods of incorporation of pulverulent material in filter sheets
IPC: B01D25/176
Filed: 1953-08-31
Abstract: 738,921. Filters. NEKOLLA, O. E. Aug. 31, 1953, No. 24033/53. Addition to 716,965. Class 46. [Also in Group XXV] The filter plate of the parent Specification is characterized by having apertures of Venturi shape, by a process and apparatus for spreading pulverulent material over the plate and for packing it into the holes, and by being sandwiched between two layers of porous paper to retain the pulverulent material prior to mounting in a filter press. A filter plate 10, Fig. 6, having apertures 11 is arranged between a stop 37 on a base-plate 30 and a make-up plate 39 on which rests a sliding plate 41 having a hole 42 filled with pulverulent material. The plate 41 is slid over the plate 10 whereupon most of its contents fall into the apertures 11. The pulverulent material is levelled off by a stepped straight - edge moved across inside the hole 42, the plate 10 being left with a thin overlying layer. A platen 31 is now lowered by a handle 36 so that a rubber pad 43 on the underside of the platen engages and fits exactly in the hole 42 of the plate 41, Fig. 8, the pulverulent material being thus pressed into the apertures 11. The filter plate 10 is then removed from the apparatus and has folded around its lower edge a sheet 12, Fig. 1, of porous paper which covers both sides, the sheet being retained at the vertical edges by spring clips 13, Fig. 3, and on the inlet face 10a by a steel spider 15, 16, Figs. 1 and 3, co-operating with a cylindrical magnet 14 (see Group XXV). The plates alternate in a filter press with solid distributer plates having corrugated surfaces and depressions 28, Fig. 3, leading to inlet and outlet holes 27 provided in all plates. The parent Specification is referred to.
Patent GB-1094131-A (GB)
Title: Improvements relating to rolling mills
Inventor: BETTS ANTHONY THOMAS KEEN
IPC: G05D3/12
Filed: 1963-06-17
Abstract: 1,094,131. Automatic control of thickness. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 5, 1964 [June 17, 1963], No.24046/63. Heading G3R. [Also in Division G1] In an automatic control equipment for rolling mills of the kind in which a material is passed through at least one set of thickness reducing rolls which are pre-set to a required gap, means are provided for subsequently feeding date representative of the actual material thickness or change in thickness to a digital computer, the computer being arranged to derive control signals representing the required roll setting or settings which are fed to control apparatus for the roll or rolls. As shown, analogue signals from roll force transducers, of which there is one for each side of a stand, are fed to an analogue processing stage where, for each stage, they are summated and integrated over a period of time after which they are fed to an analogue signal scanner which is also fed with signals from the thickness gauge and speed signals from each stand. The output from the analogue signal scanner is fed to an analogue to digital converter ADC, feeding, through a digital signal scanner, a digital computer which is also fed with other digital signals as shown. The computer is programmed in accordance with a flow diagram Fig. 1 (not shown). The computer output passes through a distributer to digital to analogue converters DAC of which there is one per stand. The outputs of the converters control roll-thickness adjusting arrangements for the stands, Fig. 3 (not shown), to maintain the rolled thickness constant. The thickness of the material is determined by an X-ray gauge, (see Division G1). It is stated that the system can be arranged to maintain constant the volume of material passing any roller in unit time, it being assumed that the width does not vary significantly as the material under treatment passes through the mill.
Patent GB-842467-A (GB)
Title: Improvements in or relating to the manufacture of sulphuric acid
Inventor: NICHOLSON ARTHUR CLAUD
IPC: C01B17/74
Filed: 1957-07-30
Abstract: Finely divided solids, including selenium dioxide, suspended in gases containing sulphur dioxide and sulphur trioxide are removed by scrubbing with 70-80% w/w sulphuric acid solution, which is circulated continuously through the scrubber.  The effluent from the scrubber is drawn off either continuously or intermittently and filtered to remove insoluble matter, and sufficient water or sulphuric acid of a concentration lower than that circulated in the scrubber is added to the solution entering the scrubber to maintain the volume and concentration of the solution circulating substantially constant.  The gases to be washed are derived from the flash or other types of pyrites ore roasters of a contact sulphuric acid plant.  The scrubbing may be carried out at <PICT:0842467/III/1> 75-110 DEG C.  The filtration may be performed in an apparatus as illustrated in the Figure.  The suspension enters pressure vessel 1 via line 2 and valve 2a, and passes through the ceramic filter tube 3, the purified solution leaving via valve 6a, and the solid matter being retained on the outside of tube 3.  When sufficient solid has built up on 3, valve 2a is closed and compressed air enters at 7, compacting and drying the solid.  Unfiltered acid is removed via valve 2b.  Water is then admitted through valve 6b, and the compacted solids in the water leave via exit 8.  Ferric sulphate present dissolves in the water.  A flocculating agent such as polyvinyl alcohol, may be added and the insoluble flocs thus obtained recovered by decantation.  The polyvinyl alcohol may be employed admixed with glycerol or in a for example 10% w/w aqueous solution.  The flocs may be heated for selenium recovery.
Patent GB-748517-A (GB)
Title: Electric switches
Inventor: PRICKETT ALFRED DONALD
IPC: H01H21/18
Filed: 1953-09-02
Abstract: 748,517. Retractive switches. LUCAS (INDUSTRIES), Ltd., J. Aug. 3, 1954 [Sept. 2, 1953], No. 24247/53. Class 38(5) The switch comprises a hollow body a, a rubber or like part d secured in one end of the body with a contact piece in the form of a metal stem f passing through and secured to the part d, the inner end j of the stem co-operating with a spring- loaded contact g in the body. The stem f may be tilted in any direction to engage the end j with the contact g or a ring i therein. Excessive tilting causes the contact g to tilt against the action of its spring h.
Patent GB-1528543-A (GB)
Title: Fuel control system for an internal combustion engine
IPC: F02D41/14
Filed: 1976-06-11
Abstract: 1528543 Spray carburetters NISSAN MOTOR CO Ltd 11 June 1976 [11 June 1975] 24270/76 Heading F1H In an I.C. engine of the type in which mixture fed to an auxiliary combustion chamber 14 is ignited by a spark-plug 16 to produce a torch which spreads into the main combustion chamber 12, the concentration of a constituent of the exhaust gases or an ion current in the main combustion chamber is sensed to produce a signal representing the air/fuel ratio which is applied to correct the fuel flow so as to regulate the air/fuel ratio towards a predetermined value. For this purpose, the O 2 , CO, CO 2 , HC or NO x  concentration in the exhaust gases in the exhaust pipe 30, Fig. 2, may be sensed, the voltage output of the sensor 32 being compared with a reference voltage in a control circuit 36 to provide a signal to an actuator 44 if the concentration is indicative of an air/fuel ratio which is greater than the stoichiometric value. The actuator 44, which may comprise an electromagnetic valve, closes an auxiliary air bleed in the carburetter 22 to enrich the mixture. Maintenance of a stoichiometric ratio enables the catalytic converter 28, which reduces NO x  and oxidizes HC and CO, to operate at optimum efficiency. In the case of the supply to the main combustion chamber 12, closure of the auxiliary air bleed (42), Fig. 3 (not shown), enriches the mixture to a degree determined by the main air bleed jet (48) and the main fuel jet (50). A similar arrangement is used for the slowrunning mixture supply. In the case of the supply to the auxiliary combustion chamber 14, two actuators 60, 62, Fig. 4, are provided to cut off the auxiliary air bleeds 56, 58 associated with the main air bleed 52 and the slow-running air bleed 54. A single carburetter may be used for the main and auxiliary combustion chambers. A fuel system line other than an auxiliary air bleed may be controlled. The fuel system may be of fuelinjection type. Instead of the exhaust gas constituents, the ion current within the main combustion chamber may be sensed. Exhaust gas may be recirculated to the main combustion chamber.
Patent GB-499471-A (GB)
Title: Improvements in or relating to oscillators of the type comprising a discharge tube having an indirectly-heated cathode
IPC: H03B5/10
Filed: 1938-08-18
Abstract: 499,471. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 18, 1938, No. 24342. Convention date, Aug. 21, 1937. [Class 40 (v)] An oscillator using an indirectly heated cathode, which may be the local oscillator in a superheterodyne receiver, is provided with chokes in the heater leads and a condenser between the cathode and the heater. The Figure shows bifilar chokes 8 in the heater leads and a condenser 11 which is large compared with the cathode-filament capacity and may be 5000 ÁÁ F. Since the cathode is connected to a point in the frequency determining circuit not at earth potential, vibration, which may be set up by the loud-speaker in the heating filament, would otherwise vary the capacity to earth of the cathode and thus the frequency.
Patent GB-443236-A (GB)
Title: Improvements in or relating to the vulcanization of rubber
IPC: C08K5/00
Filed: 1934-08-23
Abstract: A material useful as an accelerator in the vulcanization of rubber is prepared by hydrogenating carbazole and isolating from the product the portion soluble in 10 per cent acetic acid.  The hydrogenation may be carried out by any convenient method such as by maintaining carbazole in a closed vessel with hydrogen under a pressure of 100--200 lb. in presence of a nickel catalyst, or by the use of alcohol and sodium.  It has been found that the proportion of product soluble in 10 per cent acetic acid increases with the length of the hydrogenation.  In an example, carbazole is hydrogenated and extracted with 10 per cent acetic acid to yield a paste which may be used as such as an accelerator for the vulcanization of rubber, or it may be separated into its two main constituents by solution in gasoline and addition of acetic acid. The insoluble portion is filtered, treated with alkali and a white solid amine obtained.  The gasoline filtrate is extracted with water and on treatment with alkali a liquid amine obtained.  The accelerating activity of the liquid and solid amines are approximately equal.  Tests are quoted to show the efficiency of the material as an accelerator.ALSO:A material useful as an accelerator in the vulcanization of rubber is prepared by hydrogenating carbazole and isolating from the product the portion soluble in 10 per cent acetic acid.  The hydrogenation may be carried out in any convenient method such as hydrogenation under pressure in the presence of a nickel catalyst, or by the action of alcohol and sodium.  Tests are quoted to show the efficiency of the material as an accelerator.
Patent GB-1136706-A (GB)
Title: Rotary pumps and motors
IPC: F04C18/352
Filed: 1967-05-25
Abstract: 1,136,706. Valves. GENERAL MOTORS CORP. 24 May, 1967 [9 June, 1966 (2)], No. 24409/67. Heading F2V. [Also in Division F1] In a rotary pump or motor (Division F1), in particular a rotary pump for injecting air under pressure into the exhaust system of an I.C. engine to promote combustion therein of the incompletely burnt materials, e.g. CO and hydrocarbons, exhausting from the engine, a spring-loaded, pressure relief valve 126, Figs. 2, and 7, fitted in the discharge chamber 36 of the pump to regulate the pressure of air entering the exhaust system is also unseatable during deceleration of the engine by an actuator 150. The actuator 150 comprises a diaphragm 166, Fig. 8, which is clamped between housing members 162, 164 to form chambers 168, 170 and carries a member 178 loaded by a spring 176. The member 178 co-operates with a valve member 154 closable on a seat 152 and a shaft 156 to tilt a stem 158 secured to the valve member 136 of the relief valve 126. The chamber 168 is connected by a hose 174 to a vacuum source, e.g. the engine intake manifold and during engine deceleration the vacuum is sufficient to move the diaphragm 166 against the spring 176 to seat the valve member 154 to cut off communication via a connection 148 between pump discharge and the exhaust system and at the same time unseat the relief valve to divert the pump discharge through a silencer to the engine air filter. So that the air is diverted for a limited time, a perforated plate 182 is fitted which permits equalization of pressure in the chambers 168, 170 after a period of time resulting in the reseating of the relief valve and unseating of the valve member 154.
Patent GB-349850-A (GB)
Title: Improvements in or relating to cable fastenings
IPC: H01T13/04
Filed: 1930-08-15
Abstract: 349,850. Two-part couplings. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Aug. 15, 1930, No. 24447. Convention date, Dec. 6, 1929. [Class 38 (i).] In a terminal for ignition cables having a forked member 1 that engages a neck on the stem of the sparking plug and a leaf spring 4 having a hole that locks over the end of the stem, means are provided to limit the bending of the leaf spring. Lugs 6 may be formed on the end or sides of the spring 4 or of the member 1 and are bent to form stops to limit the relative movement of the members. Alternatively a headed pin attached to one member passes through a hole in the other.
Patent GB-801745-A (GB)
Title: Improvements relating to crates and like containers
IPC: B62B3/00
Filed: 1955-08-25
Abstract: 801,745. Steering vehicles. PACKMAN, P. J. Sept. 24, 1956 [Aug. 25, 1955], No. 24492/55. Class 79(5) [Also in Groups XVII, XXX and XXXII] A crate adapted for use in a vehicle (see Groups XVII, XXXII) has wheels or rollers arranged for steering control. The chassis has two pairs of rollers 20, 21, the pair 21 being mounted for rotation castor fashion on members carrying sprockets 25 round which a chain 24 passes to link the members..The crate is steered by a removable tiller 35 connected to lever means 42 the end of which is secured to one side of the chain.
Patent GB-1040613-A (GB)
Title: Improvements in or relating to the manufacture of steel wire cables
IPC: D07B1/06
Filed: 1963-06-20
Abstract: 1, 040, 613. Making wire cable. TREFILERIES LEON BEKAERT S.p.r.L. June 20, 1963 [June 20, 1962], No. 24661/63. Heading D1T. A method of making a steel wire cable from wire supplied from bobbins that do not rotate about the axis of the resulting cable comprises passing two or three wires in one direction along the axis of a revolving drum and thence to the drum to twist the wires together, delivering the resultant cable in the opposite direction along the axis of the drum to a non-rotatable guide to give a further twist to the cable, and then delivering the cable to a twisting device which rotates in the opposite direction to that of the drum to remove the residual torsion tension and straighten the cable. The bobbins 1, 2, 3 and the rollers 4, 5 are mounted so that they are non-rotatable about the axis of a revolving drum 7. The wires a, b, c, for example 7-wire 0.15 mm strands, are drawn in the direction of the arrows and are twisted together as they move from roller 5 to roller 6, roller 6 rotating with the drum 7. The resulting strand is then passed in the opposite direction to emerge from the drum 7 along its axis of rotation, the strand being further twisted as it leaves the drum by the rotation of the drum 7 relatively to a pair of guide-rollers 9, 10 that do not rotate with the drum 7. After passing over the rollers 9 and 10, the strand reaches a twister 11, the direction of rotation of which is opposite to that of the drum 7. The twister 11 imparts additional twist as the cable passes from the rollers 9, 10 to the roller 12, and releases the additional twist as the cable passes from the roller 13 to a take-up bobbin 14. The speed of rotation of the twister 11 is adjusted so that the amount of false twist imparted to the cable by the rotation of the twister 11 is sufficient to release residual stresses and produce an inert cable. In a further operation two strands, each obtained as described above, are twisted together by the same method on a larger machine in order to shorten the pitch.
Patent GB-1035873-A (GB)
Title: Block copolymers and compositions containing them
IPC: C08F36/04
Filed: 1964-06-15
Abstract: Thermoplastic elastomeric block copolymers are made which are of the form A-B-A in which each A is a polymer block which is derived from a vinyl aromatic hydrocarbon and has an average molecular weight of 10,000 to 45,000 and a glass transition temperature above 50 DEG  C., and B is a polymer block which is derived from a conjugated diene and has an average molecular weight of 35,000 and 150,000, the difference in glass transition temperature between blocks A and B being at least 100 DEG  C., the blocks A constituting at least 38% by weight of the block copolymer.  The copolymers are prepared by the sequential polymerization of vinyl aromatic hydrocarbons, e.g. styrene, and conjugated dienes, e.g. butadiene and isoprene, using lithium metal or an organo-lithium compound as a catalyst.  The resulting block copolymers may be compounded with carbon black and titanium dioxide and, especially, extending oils, e.g. cyclic hydrocarbon oils.
Patent GB-1187966-A (GB)
Title: Improved Attachment Means for Sheets of Paper and the like.
Inventor: JARVIS LIONEL WILLIAM
IPC: B42F11/00
Filed: 1966-06-03
Abstract: 1,187,966. Filing papers; sheet holders. W. & J. JARVIS Ltd. 26 May, 1967 [3 June, 19661, No. 24764/66. Addition to 948,166. Headings B6A and B6E. Grippers for attaching a sheet 6, Fig. 1, to a backing 1 through the intermediary of a block 3 having a plurality of C-shaped channels 4, as claimed in parent Specification 948,166 is modified in that the longitudinal flaps having their opposite inner faces provided with adhesive are replaced by resilient jaws 7 which grip the sheet 6 between them. In a modification the relative force of the jaws 7 is increased by providing the distal ends with gripping teeth 15, Fig. 4. The gripper 5, Fig. 1, may be extruded integrally from a plastics material, whereby the resilient jaws 7 are made from a rigid plastics and the hinge portion 9 and mounting bead 8 are made from a softer, flexible plastics material. The gripper 10, (Fig. 3) is extruded in two separate portions from rigid and soft plastics materials for the jaws 11 and hinge portion 13, respectively, and the separate portions are then joined together by welding or cementing.
Patent GB-1101347-A (GB)
Title: Improvements in a rolling mill
Inventor: SHUMAKER CHARLES STORER
IPC: B21B31/10
Filed: 1964-06-15
Abstract: 1,101,347. Rolling. UNITED ENGINEERING & FOUNDRY CO. 27 May, 1965 [15 June, 1964], No. 24779/64. Heading B3M. In a four- or two-high rolling mill, pressure blocks are movable into and out of a position under the chocks of the lowermost roll, and means are provided for raising the chocks away from the blocks, and for supporting the chocks when the blocks are removed. A fourhigh mill comprises work rolls 13, 14, and backup rolls 15, 16, the ends of which are supoprted in housings 11 by chocks 22, 17, 21, 26, which are slidable in windows 12. Each chock 21 is held in chock 17 by latches, wheels 20 are mounted on chock 17, and chock 22 is hooked to chock 17 at 24. Chock 26 has a rocker plate 28, which engages fillers 29 carried on a slide 40 actuated by a piston 44, Fig. 3, and below the platform is a pressure block 31. A back up roll changing sled 34 extends between the windows 12 and a pair of pistons 38 project through the sled to engage a projection 41 on chock 26, so as to raise the latter. Back-up roll 15 is balanced by a double-acting piston 48, which is also used for supporting chocks 22, 17, 21 and therefore the weight of rolls 13-15. To remove fillers 29 for effecting a changing of rolls 13, 14 and/or the replacement of different fillers, pistons 38 are actuated to lift chocks 26 and therefore roll 16. Piston 44 is operated to remove fillers 29 from under chock 26 to the position of Fig. 4 (not shown). Chock 26 is supported by sled 34, piston 48 is actuated to allow rolls 13-15 to be lowered to the position of Fig. 2, so that wheels 20 are at floor level. The rolls can be removed and replaced by a new set of rolls.
Patent GB-1340358-A (GB)
Title: Sample holder and transferring device
IPC: B04B5/04
Filed: 1971-04-19
Abstract: 1340358 Centrifugal analysis UNION CARBIDE CORP 19 April 1971 [13 April 1970] 24839/71 Heading B1X [Also in Division G2] A disc for use in a rotary analyser has a number of radial cavities each of which is formed with an inner recess 14, for reagent, with an outwardly inclined outer wall; a central recess 16, for a sample, which is shallower than the inner recess 14; and a mixing recess 18 with an inwardly inclined outer wall and connected to the outside of the disc through a port 20. The ports bend to cuvettes (not shown) into which mixed reagent and samples are forced by centrifugal force when the disc is rotated. The cuvettes pass through one beam of a double-beam spectrophotometer.